package part21;

import java.util.concurrent.TimeUnit;

/**
 * @author wcj
 * @Date 2021/6/7 19:16
 * @Version 1.0
 */
public class Part219 {

    public static void main(String[] args) throws InterruptedException {
        Thread d = new Thread(new Daemon());
        d.setDaemon(true);
        d.start();
        System.out.println("d.isDaemon() = " + d.isDaemon() + ",");
        TimeUnit.MILLISECONDS.sleep(1);
    }
}

class Daemon implements Runnable {
    private Thread[] t = new Thread[10];

    @Override
    public void run() {
        for (int i = 0; i < t.length; i++) {
            t[i] = new Thread(new DaemonSpawn());
            t[i].start();
            System.out.println("DaemonSpawn " + i + "started ");
        }

        for (int i = 0; i < t.length; i++) {
            System.out.println("t[" + i + "].isDaemon() = " + t[i].isDaemon() + ".");
        }
        while (true) {
            Thread.yield();
        }
    }

}

class DaemonSpawn implements Runnable {

    @Override
    public void run() {
        while (true) {
            Thread.yield();
        }
    }
}
